��ͨ��δ��չ��ȵ㼼��չ��

2010-1-11

��ͨ�ŵĵ��뷢չ�ǵ��ʷ�ϵ�һ��Ҫ��˴��۵��ʵ�֣��ٵ��ĸ��ٹ��ͨ��Ҳ��ʮ��ʱ�䡣20��⼼��Ҫ��չΪWDM��PON��Ѿ��ԱȽϳ��졣��ҵ��䷢չƽ̨��棬һ��Ǹ��Ч��̫��ҵ��ҵ��һ��ҵ��淢չ��չ��δ��ڹ�ͨ��м��չ�ȵ㼴��ٴ��ϵͳ��WDMϵͳ��⴫��һ��ˡ�IPoverOptical�Լ��

��򳬸��ϵͳ�ķ�չ

��Ŀǰ��10Gbpsϵͳ�ѿ�ʼ��װ��磬��Ҫ�ڱ��ŷ�ޡ��ձ��ͰĴ��Ҳ�ѿ�ʼ��Ӧ�á��ǣ�10Gbpsϵͳ��ڹ��¼��ģɫɢ�Ƚ��У��Ѿ��Ĺ��²��һ��㿪ͨ��ʹ��10Gbpsϵͳ��Ҫ��Ҫʵ�ʲ��ԣ��֤�ϸ��ܰ�װ��ͨ��ıȽ��ʵ�ĳ�·��ת��ĸ��÷�ʽ��⸴�÷�ʽ�кܶ��֣��Ŀǰֻ�в��ָ��(WDM)��ʽ��˴��ģ��ý׶Σ��ʽ�д��о��׶Ρ�

��򳬴��WDMϵͳ��ݽ�

��õ��ʱ�ָ��ϵͳ��Ǳ��Ѿ��Ȼ��˵�200nm��ô��Դ��ʲ��1%��99%��Դ�д��Ͳ��ʵ��Ĺ�Դ�ź�ͬʱ��һ��ϴ��ͣ��ɴ��ӹ��˵��Ϣ��ǲ��ָ��õĻ��˼·��WDMӦ�õľ޴�ô��ϵ��ش�ͻ�ƺ��г��ָ��ϵͳ��չʮ��Ѹ�١�Ŀǰȫ��ʵ��WDMϵͳ�ѳ��3000��ʵ�û�ϵͳ��Ѵ�320Gbps��Ѷ��˾��Ƴ�80��WDMϵͳ��ɴ�200Gbps��ʵ��ҵ��ˮƽ��Ѵﵽ2.6Tbps��Ԥ�Ʋ��õĽ��ʵ�û�ϵͳ��ɴﵽ1Tbps��ˮƽ��

��ʵ�ֹ��

��ʵ�û��Ĳ��ָ��ϵͳ��ܾ��о޴�Ĵ��Ե㵽��ͨ��Ϊ��ϵͳ��ԺͿɿ��Ի��롣��ڹ�·��Ҳ��ʵ��SDH�ڵ�·�ϵķֲ幦�ܺͽ��ӹ��ܵĻ��ɽ��һ��ڹ��о޴��Ǳ��ƣ��ձ��ŷ�޵ȷ��Ͷ��˴��Ͳ��Ԥ�У��ر��Ԥ�о��һϵ�й��Ŀ��Ѿ��Ϊ��SDH��Ժ��һ�µĹ�ͨ�ŷ�չ�߳��

��һ��

��ͳ��G.652��ģ��Ӧ��ٳ��봫��ķ�չ��Ҫ��ѱ�¶��ĵ�̬�ƣ��͹��ѳ�Ϊ��һ��ʩ��Ҫ��ɲ��֡�Ŀǰ��Ϊ��Ӧ��ͳ��Ĳ�ͬ��չ��Ҫ��ѳ��ֲ�ͬ��͹��ˣ��ɫɢ��(G.655��)��ˮ��շ��(ȫ��)��У�ȫ��˽��Ժ󿪷��ص㣬Ҳ��о��ȵ㡣�ӳ�Զ��XPON��޿��ؽ��δ��뼼��ķ�չ��򡣵��ӵ�ǰ��չ��ɱ��Ӧ��ʵ��״��ʵ�ֹ㷺Ӧ��ڵ��Ž��һ��Ŀ�껹��һ��ϳ��ķ�չ��̡�

��IPover SDH��IP over Optical

��lPҵ��Ϊ��ҵ��ǵ�ǰ��Ϣҵ��չ��Ҫ�ƶ��ܷ��Ч��֧��IPҵ��ѳ�Ϊ�¼��ܷ��г�Զ��ı�־��Ŀǰ��ATM��SDH��֧��lP��ֱ��ΪIPoverATM��IPoverSDH��߸��ǧ���ӳ�Զ��IPҵ��ӣ��Ҫ��2��4��λÿ��·��ʱ��п��ջ�ʡ��м��SDH�㣬IPֱ��ڹ�·��ܣ��γ�ʮ�ּ�ͳһ��IP��ṹ(IPoverOptical)��IP��ͼ��ڵ��չ�Ĳ�ͬʱ�ں��Ĳ�ͬ��ַ��Լ�Ӧ�е��ʷ��á��δ��ӽǿ��IPoverOptical��߳�Զ��ļ��ر��IPҵ��𽥳�Ϊ��ҵ��ֶ�IPҵ��Ĵ��ͼ��Ϊδ��ر��ǹǸ��ͼ��

��ȫ��ƿ��

��꣬��ĺ��Ĳ��ַ��˷��츲�صı仯��ǽ��Ǵ��䣬��Ѹ��˺ü��һ��棬��һ��ֽ��Ϊȫ��ֻ��ġ��׺Ϳ��Ƶġ��߶ȼ��ɺ��ܻ��磻��һ��棬�ִ�Ľ��Ȼ�Ǳ�˫��ͭ��׵�(90%��)��ԭʼ��ģ��ϵͳ��ڼ��ϴ��ھ޴�ķ����Լȫ��Ľ�һ��չ��Ϊ��ܴӸ��ϳ��׽��һ��⣬��չ��

��Դ�� ��ʵ籨��